删除空行的正则表达式
删除空行的正则表达式
提问于 2018-09-20 03:39:52
我正在尝试删除单个正则表达式中的空行和无效记录。但它似乎不起作用。在下面的示例中，包含Serverserial:0和ServerName:"“empty的记录是无效记录，
{"eventType":"delete","ServerSerial":"1142691750","ServerName":"XYZ_P_O","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"0","ServerName":"","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"1142691950","ServerName":"ABC_P_1","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"0","ServerName":"","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"0","ServerName":"","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"1142691750","ServerName":"COL_P_1","deletedat":"2018-08-24 15:30:48.136"}通过使用下面的正则表达式，它只删除无效条目，但不会删除跟踪(空行)
.*(?<=ServerSerial":")0(?=").*|.*(?<=ServerName":")(?=").*我也试过了，没什么好结果
.*(?<=ServerSerial":")0(?=").*[\r\n]*|.*(?<=ServerName":")(?=").*[\r\n]*当前输出类似于空白行
{"eventType":"delete","ServerSerial":"1142691750","ServerName":"XYZ_P_O","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"1142691950","ServerName":"ABC_P_1","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"1142691750","ServerName":"COL_P_1","deletedat":"2018-08-24 15:30:48.136"}但是预期的输出是
{"eventType":"delete","ServerSerial":"1142691750","ServerName":"XYZ_P_O","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"1142691950","ServerName":"ABC_P_1","deletedat":"2018-08-24 15:30:48.136"},
{"eventType":"delete","ServerSerial":"1142691750","ServerName":"COL_P_1","deletedat":"2018-08-24 15:30:48.136"}回答 5
Stack Overflow用户
发布于 2018-09-20 04:18:46
将此代码附加到第二个正则表达式中：
(?<=[\r\n])[\r\n]|通过删除前面有另一个新行的换行符来删除空行。
Stack Overflow用户
发布于 2018-09-20 05:16:41
将文件转换为unix文件后，可以使用
grep -Ev 'ServerSerial":"0?"|ServerName":"0?"' inputfileStack Overflow用户
发布于 2018-09-20 18:04:27
您可以通过以下方式忽略这些空行。
使用ReplaceText处理器。
Search: \n\n\s|\n\s
Replace: \n参考：How to use regex to remove the spaces between two rows?
如果你在其中遇到任何问题，请让我知道。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/52413136
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